Praecursores ad Floram Sylvaticam 

 Koreanam. I. 



ACERACE/E. 



Auctore 

 Takenoshiii Nakai. 



Acer, Tournef. 



Conspectus sectionum et subgenerum. 

 Subgn. I. Extrastaminalia, Pax. sensu div. 



Stamina a disco annulari ut fasciculo circumdantur. Perigo- 



nium pentamerum. Stamina 8. 

 Sect. 1. Spicata (Pax) Nakai. 



Folia 3-5 lobata. Inflorescentia spicaor-tacemosa, polyama. 

 Sect. 2. Ginnala, Nakai. hoy. 



Folia trilobata v. indivisa. Inflorescentia corymboso-paui- 



culata, polyama. 

 Sect. 3. Palmata, Pax. 



Folia 5-13 (vulgo 7—13) lobata. Inflorescentia corymboso- 



paniculata, polygama. 

 Sect. 4. Trifoliata, (Pax) Koidz. 



Folia ternata. Inflorescentia racemosim 3-5 floris, andro- 



dioica v. monasica. 

 Subgn. If. Circumstaminalia, Nakai nov. 



Stamina e fossis disci evoluta ie. quidque stamen basi disco 



continuo circumdatur. 

 Sect. 5. Platanoidea, Pax. 



Folia 3-7 (vulgo 5-7) lobata. Inflorescentia corymboso- 



paniculata, polygama. 

 Subgn. III. Intrastaminalia, Pax. 



Stamina discum circumdant v. in slnu lobi posita. 



